diplodocus.org Git - nmh/blob - uip/pick.c

   1
   2 /*
   3  * pick.c -- search for messages by content
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, 2008, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <h/tws.h>
  14 #include <h/picksbr.h>
  15 #include <h/utils.h>
  16
  17 static struct swit switches[] = {
  18 #define ANDSW                   0
  19     { "and", 0 },
  20 #define ORSW                    1
  21     { "or", 0 },
  22 #define NOTSW                   2
  23     { "not", 0 },
  24 #define LBRSW                   3
  25     { "lbrace", 0 },
  26 #define RBRSW                   4
  27     { "rbrace", 0 },
  28 #define CCSW                    5
  29     { "cc  pattern", 0 },
  30 #define DATESW                  6
  31     { "date  pattern", 0 },
  32 #define FROMSW                  7
  33     { "from  pattern", 0 },
  34 #define SRCHSW                  8
  35     { "search  pattern", 0 },
  36 #define SUBJSW                  9
  37     { "subject  pattern", 0 },
  38 #define TOSW                   10
  39     { "to  pattern", 0 },
  40 #define OTHRSW                 11
  41     { "-othercomponent  pattern", 0 },
  42 #define AFTRSW                 12
  43     { "after date", 0 },
  44 #define BEFRSW                 13
  45     { "before date", 0 },
  46 #define DATFDSW                14
  47     { "datefield field", 5 },
  48 #define SEQSW                  15
  49     { "sequence name", 0 },
  50 #define PUBLSW                 16
  51     { "public", 0 },
  52 #define NPUBLSW                17
  53     { "nopublic", 0 },
  54 #define ZEROSW                 18
  55     { "zero", 0 },
  56 #define NZEROSW                19
  57     { "nozero", 0 },
  58 #define LISTSW                 20
  59     { "list", 0 },
  60 #define NLISTSW                21
  61     { "nolist", 0 },
  62 #define VERSIONSW              22
  63     { "version", 0 },
  64 #define HELPSW                 23
  65     { "help", 0 },
  66     { NULL, 0 }
  67 };
  68
  69 static int listsw = -1;
  70
  71 static void putzero_done (int) NORETURN;
  72
  73 int
  74 main (int argc, char **argv)
  75 {
  76     int publicsw = -1, zerosw = 1, seqp = 0, vecp = 0;
  77     int lo, hi, msgnum;
  78     char *maildir, *folder = NULL, buf[100];
  79     char *cp, **argp, **arguments;
  80     char *seqs[NUMATTRS + 1], *vec[MAXARGS];
  81     struct msgs_array msgs = { 0, 0, NULL };
  82     struct msgs *mp;
  83     register FILE *fp;
  84
  85     done=putzero_done;
  86
  87 #ifdef LOCALE
  88     setlocale(LC_ALL, "");
  89 #endif
  90     invo_name = r1bindex (argv[0], '/');
  91
  92     /* read user profile/context */
  93     context_read();
  94
  95     arguments = getarguments (invo_name, argc, argv, 1);
  96     argp = arguments;
  97
  98     while ((cp = *argp++)) {
  99         if (*cp == '-') {
 100             if (*++cp == '-') {
 101                 vec[vecp++] = --cp;
 102                 goto pattern;
 103             }
 104             switch (smatch (cp, switches)) {
 105             case AMBIGSW:
 106                 ambigsw (cp, switches);
 107                 listsw = 0;     /* HACK */
 108                 done (1);
 109             case UNKWNSW:
 110                 adios (NULL, "-%s unknown", cp);
 111
 112             case HELPSW:
 113                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 114                           invo_name);
 115                 print_help (buf, switches, 1);
 116                 listsw = 0;     /* HACK */
 117                 done (1);
 118             case VERSIONSW:
 119                 print_version(invo_name);
 120                 listsw = 0;     /* HACK */
 121                 done (1);
 122
 123             case CCSW:
 124             case DATESW:
 125             case FROMSW:
 126             case SUBJSW:
 127             case TOSW:
 128             case DATFDSW:
 129             case AFTRSW:
 130             case BEFRSW:
 131             case SRCHSW:
 132                 vec[vecp++] = --cp;
 133             pattern:
 134                 if (!(cp = *argp++))/* allow -xyz arguments */
 135                     adios (NULL, "missing argument to %s", argp[-2]);
 136                 vec[vecp++] = cp;
 137                 continue;
 138             case OTHRSW:
 139                 adios (NULL, "internal error!");
 140
 141             case ANDSW:
 142             case ORSW:
 143             case NOTSW:
 144             case LBRSW:
 145             case RBRSW:
 146                 vec[vecp++] = --cp;
 147                 continue;
 148
 149             case SEQSW:
 150                 if (!(cp = *argp++) || *cp == '-')
 151                     adios (NULL, "missing argument to %s", argp[-2]);
 152
 153                 /* check if too many sequences specified */
 154                 if (seqp >= NUMATTRS)
 155                     adios (NULL, "too many sequences (more than %d) specified", NUMATTRS);
 156
 157                 if (!seq_nameok (cp))
 158                   done (1);
 159
 160                 seqs[seqp++] = cp;
 161                 continue;
 162             case PUBLSW:
 163                 publicsw = 1;
 164                 continue;
 165             case NPUBLSW:
 166                 publicsw = 0;
 167                 continue;
 168             case ZEROSW:
 169                 zerosw++;
 170                 continue;
 171             case NZEROSW:
 172                 zerosw = 0;
 173                 continue;
 174
 175             case LISTSW:
 176                 listsw = 1;
 177                 continue;
 178             case NLISTSW:
 179                 listsw = 0;
 180                 continue;
 181             }
 182         }
 183         if (*cp == '+' || *cp == '@') {
 184             if (folder)
 185                 adios (NULL, "only one folder at a time!");
 186             else
 187                 folder = pluspath (cp);
 188         } else
 189                 app_msgarg(&msgs, cp);
 190     }
 191     vec[vecp] = NULL;
 192
 193     if (!context_find ("path"))
 194         free (path ("./", TFOLDER));
 195
 196     /*
 197      * If we didn't specify which messages to search,
 198      * then search the whole folder.
 199      */
 200     if (!msgs.size)
 201         app_msgarg(&msgs, "all");
 202
 203     if (!folder)
 204         folder = getfolder (1);
 205     maildir = m_maildir (folder);
 206
 207     if (chdir (maildir) == NOTOK)
 208         adios (maildir, "unable to change directory to");
 209
 210     /* read folder and create message structure */
 211     if (!(mp = folder_read (folder)))
 212         adios (NULL, "unable to read folder %s", folder);
 213
 214     /* check for empty folder */
 215     if (mp->nummsg == 0)
 216         adios (NULL, "no messages in %s", folder);
 217
 218     /* parse all the message ranges/sequences and set SELECTED */
 219     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 220         if (!m_convert (mp, msgs.msgs[msgnum]))
 221             done (1);
 222     seq_setprev (mp);   /* set the previous-sequence */
 223
 224     /*
 225      * If we aren't saving the results to a sequence,
 226      * we default to list the results.
 227      */
 228     if (listsw == -1)
 229         listsw = !seqp;
 230
 231     if (publicsw == 1 && is_readonly(mp))
 232         adios (NULL, "folder %s is read-only, so -public not allowed", folder);
 233
 234     if (!pcompile (vec, NULL))
 235         done (1);
 236
 237     lo = mp->lowsel;
 238     hi = mp->hghsel;
 239
 240     /* If printing message numbers to standard out, force line buffering on.
 241      */
 242     if (listsw)
 243         setvbuf (stdout, NULL, _IOLBF, 0);
 244
 245     /*
 246      * Scan through all the SELECTED messages and check for a
 247      * match.  If the message does not match, then unselect it.
 248      */
 249     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 250         if (is_selected (mp, msgnum)) {
 251             if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
 252                 admonish (cp, "unable to read message");
 253             if (fp && pmatches (fp, msgnum, 0L, 0L)) {
 254                 if (msgnum < lo)
 255                     lo = msgnum;
 256                 if (msgnum > hi)
 257                     hi = msgnum;
 258
 259                 if (listsw)
 260                     printf ("%s\n", m_name (msgnum));
 261             } else {
 262                 /* if it doesn't match, then unselect it */
 263                 unset_selected (mp, msgnum);
 264                 mp->numsel--;
 265             }
 266             if (fp)
 267                 fclose (fp);
 268         }
 269     }
 270
 271     mp->lowsel = lo;
 272     mp->hghsel = hi;
 273
 274     if (mp->numsel <= 0)
 275         adios (NULL, "no messages match specification");
 276
 277     seqs[seqp] = NULL;
 278
 279     /*
 280      * Add the matching messages to sequences
 281      */
 282     for (seqp = 0; seqs[seqp]; seqp++)
 283         if (!seq_addsel (mp, seqs[seqp], publicsw, zerosw))
 284             done (1);
 285
 286     /*
 287      * Print total matched if not printing each matched message number.
 288      */
 289     if (!listsw) {
 290         printf ("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
 291     }
 292
 293     context_replace (pfolder, folder);  /* update current folder         */
 294     seq_save (mp);                      /* synchronize message sequences */
 295     context_save ();                    /* save the context file         */
 296     folder_free (mp);                   /* free folder/message structure */
 297     done (0);
 298     return 1;
 299 }
 300
 301
 302 static void
 303 putzero_done (int status)
 304 {
 305     if (listsw && status && !isatty (fileno (stdout)))
 306         printf ("0\n");
 307     exit (status);
 308 }